I was already giving the idea of bards performing in these taverns. The whispering mode (talk to players nearby) mode would be quite nice, making the chatroom per table unncesary. If you want to, you can talk to people nearby, but normally you would talk to the entire tavern. (else chatting would be practicly impossible). There could be some small tables in the dark corners of the tavern, in which illuster figures (and GM\'s) could take place and watch the global conversations, or conspire in whisper mode.
Buying a drink would be necessary to be able to join the taverns chatroom. This allows GM\'s to be barman, and even players. Players could gain money by leading taverns, just because they get a small amount of money from everyone who wants to enter the chat. You could also buy meals in taverns, becasue you have to eat. don\'t you?
The Barman (who would be channel operator too) could have the function of litteraly kicking someone out of his bar, and not allowing him in anymore.
The chatwindow could be a semi-transparent chat-bar that covers 1/3 of the screen. This allows you to actually SEE the others in the bar you\'re talking to. Certain bars would grow popular, and players might actually begin speaking about meeting eachother in a certain tavern before adventuring together.
Polycount could be a problem (20 1000poly characters in one room= 500.000 poly\'s a second, not even counting other objects in the room like chairs), but it could be solved by deviding the tavern into different parts. Ad allowing a maximum number of players per bar. (resulting in taverns beeing full, and you having to search for a nearby tavern).
Thekkur